Can't Set HTTP Proxy

Steps to reproduce the problem:

1. Open in console mitmproxy to show options like : mitmproxy --options
2. There is an option upstream_bind_address
3. But when I try to set it up , I get error as :
   mitmproxy: error: unrecognized arguments: --upstream_bind_address

In the screenshot below.

What I am trying to do

My college uses a proxy and so was trying to route my traffic through that, I have a proxy authentication and was trying to set it up

Also Another Issue I think worth mentioning

When using help in terminal mitmproxy --help I get this output :

(venv) root@Dell-PC:~/mitmproxy# mitmproxy --help
usage: mitmproxy [options] [filter]

positional arguments:
  filter_args           Filter view expression, used to only show flows that
                        match a certain filter. See help in mitmproxy for
                        filter expression syntax.

optional arguments:
  -h, --help            show this help message and exit
  --version
  --shortversion        show program's short version number and exit
  --options             Show all options and their default values
  --conf PATH           Read options from a configuration file
  --set option[=value]  Set an option. When the value is omitted, booleans are
                        set to true, strings and integers are set to None (if
                        permitted), and sequences are emptied.
  -q, --quiet           Quiet.
  -v, --verbose         Increase log verbosity.
  --mode MODE, -m MODE  Mode can be "regular", "transparent", "socks5",
                        "reverse:SPEC", or "upstream:SPEC". For reverse and
                        upstream proxy modes, SPEC is proxy specification in
                        the form of "http[s]://host[:port]".
  --no-anticache
  --anticache           Strip out request headers that might cause the server
                        to return 304-not-modified.
  --no-showhost
  --showhost            Use the Host header to construct URLs for display.
  --rfile PATH, -r PATH
                        Read flows from file.
  --scripts SCRIPT, -s SCRIPT
                        Execute a script. May be passed multiple times.
  --stickycookie FILTER
                        Set sticky cookie filter. Matched against requests.
  --stickyauth FILTER   Set sticky auth filter. Matched against requests.
  --streamfile PATH, -w PATH
                        Write flows to file. Prefix path with + to append.
  --no-anticomp
  --anticomp            Try to convince servers to send us un-compressed data.
  --flow-detail LEVEL   Flow detail display level.

Proxy Options:
  --listen-host HOST    Address to bind proxy to.
  --listen-port PORT, -p PORT
                        Proxy service port.
  --no-server, -n
  --server              Start a proxy server.
  --ignore-hosts HOST   Ignore host and forward all traffic without processing
                        it. In transparent mode, it is recommended to use an
                        IP address (range), not the hostname. In regular mode,
                        only SSL traffic is ignored and the hostname should be
                        used. The supplied value is interpreted as a regular
                        expression and matched on the ip or the hostname. May
                        be passed multiple times.
  --tcp-hosts HOST      Generic TCP SSL proxy mode for all hosts that match
                        the pattern. Similar to --ignore, but SSL connections
                        are intercepted. The communication contents are
                        printed to the log in verbose mode. May be passed
                        multiple times.
  --upstream-auth USER:PASS
                        Add HTTP Basic authentcation to upstream proxy and
                        reverse proxy requests. Format: username:password.
  --proxyauth SPEC      Require authentication before proxying requests. If
                        the value is "any", we prompt for authentication, but
                        permit any values. If it starts with an "@", it is
                        treated as a path to an Apache htpasswd file. If its
                        is of the form "username:password", it is treated as a
                        single-user credential.
  --no-rawtcp
  --rawtcp              Enable/disable experimental raw TCP support. Disabled
                        by default.

SSL:
  --certs SPEC          SSL certificates. SPEC is of the form "[domain=]path".
                        The domain may include a wildcard, and is equal to "*"
                        if not specified. The file at path is a certificate in
                        PEM format. If a private key is included in the PEM,
                        it is used, else the default key in the conf dir is
                        used. The PEM file should contain the full certificate
                        chain, with the leaf certificate as the first entry.
                        Can be passed multiple times. May be passed multiple
                        times.
  --no-ssl-insecure
  --ssl-insecure, -k    Do not verify upstream server SSL/TLS certificates.

Client Replay:
  --client-replay PATH, -C PATH
                        Replay client requests from a saved file. May be
                        passed multiple times.

Server Replay:
  --server-replay PATH, -S PATH
                        Replay server responses from a saved file. May be
                        passed multiple times.
  --no-replay-kill-extra
  --replay-kill-extra   Kill extra requests during replay.
  --no-server-replay-nopop
  --server-replay-nopop
                        Disable response pop from response flow. This makes it
                        possible to replay same response multiple times.

Replacements:
  --replacements PATTERN, -R PATTERN
                        Replacement patterns of the form
                        "/pattern/regex/replacement", where the separator can
                        be any character. May be passed multiple times.

Set Headers:
  --setheaders PATTERN, -H PATTERN
                        Header set pattern of the form
                        "/pattern/header/value", where the separator can be
                        any character. May be passed multiple times.
(venv) root@Dell-PC:~/mitmproxy# 

There is an option of --upstream-auth but no upstream_proxy_address , which made me wonder and find out the first issue.

System information

Mitmproxy version: 3.0.0 (2.0.0dev0201-0x253fa950) Python version: 3.5.3 Platform: Linux-4.6.0-kali1-amd64-x86_64-with-Kali-kali-rolling-kali-rolling SSL version: OpenSSL 1.1.0e 16 Feb 2017 Linux distro: Kali kali-rolling kali-rolling

[LuD1161]

@krsoninikhil Finally got it working Using this :

mitmproxy --set mode=upstream:http://172.31.1.5:8080 upstream_auth=user:pass --set ssl_insecure=True (edited)

[LuD1161]

@krsoninikhil Yes that too didn’t work.

My mitmproxy --version output

(venv) root@Dell-PC:~/mitmproxy# mitmproxy --version
Mitmproxy version: 3.0.0 (2.0.0dev0203-0xc0882496) 
Python version: 3.5.3
Platform: Linux-4.6.0-kali1-amd64-x86_64-with-Kali-kali-rolling-kali-rolling
SSL version: OpenSSL 1.1.0e  16 Feb 2017
Linux distro: Kali kali-rolling kali-rolling